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basically stating a 1 inch drain line will be noisy because it cannot effectively handle more than 300 gph without going full siphon

this explains why my 75 gallon is noisy and my 29 isn't.. both have 1 inch drain lines, just different bulkhead sizes

im wondering if a CS90 overflow box will support a 1.5 inch bulkhead or if i just need to buy the cs150?

01-30-2013 02:16 AM

HD Blazingwolf

Quote:

Originally Posted by NWA-Planted

Photos or it didn't happen

Sent from my SCH-I535 using Tapatalk 2

there it happened. and i updated my journal with it too

if u build one. take the advice and build it with 1-1/4 dia pipe... i can't get my overflow box level exactly where i want it, i believe the size is the issue.
i either get full siphon, or water level gets too high if the hole is too big in the top

01-28-2013 12:12 PM

HD Blazingwolf

LOL
that'll have to wait till toight.. its 3.8 feet away and hidden by return lines and a hanging planter!!!

01-28-2013 11:33 AM

NWA-Planted

Re: Help, noisy CPR overflow

Photos or it didn't happen

Sent from my SCH-I535 using Tapatalk 2

01-28-2013 10:19 AM

HD Blazingwolf

Durso worked.
I didnt use the 1-1/4 pipe as was recommended. Flow rates are low enough apparently to use straight 1 inch down. Strainer was used as well with sponge
I like it

Try the Durso first. it is much better than nothing is super cheap and not permanent. I do love the Herbie though.

Living on the edge blocking the overflow........

YEAH I KNOW.. i dont wanna keep it that way.. that's why i was looking for an alternative before changing things

the cs50 was just sooooo quite.. i was hoping i would have similar results but alas. its either vortex tank or gurgle noise with this model
so durso it is!!
and if that doesn't work, i'll be looking into a herbie

01-25-2013 05:23 PM

Kathyy

Try the Durso first. it is much better than nothing is super cheap and not permanent. I do love the Herbie though.

Living on the edge blocking the overflow........

01-25-2013 05:14 PM

NWA-Planted

Re: Help, noisy CPR overflow

I know you won't like it but here is my recommendation. On my old setup it had two drains, i ran one at a full siphon just to where a little bit went into the other pipe. Worked great, super quiet and still got the air exchange via the second pipe.

I would add a second bulkhead on one side of the housing as a "overflow" run the primary drain at full siphon but slow enough that water still travels through the secondary line. That way you have a backup drain quiet and air exchange

Sent from my SCH-I535 using Tapatalk 2

01-25-2013 05:03 PM

HD Blazingwolf

oh that makes sense... i know about herbie and durso

nwa it has one drain.. lemme grab a google image until i can snap some tonight

that shot is of a cs50.. smaller back side.. also the newer style does not have the fish screen. it has a slotted weir